Tanzanite 4.05 ct | Round | Purplish Blue | Merelani Hills, Tanzania

SKU: TZS084 Category: Tag:

Attractive roundish Tanzanite (4.05 ct) from the Merelani Hills, Tanzania, showing the same friendly medium-saturated purplish-blue color as the previous stone. A lively, wearable look—ideal for a classic ring or elegant pendant.

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Description

This beautiful 4.05 ct Tanzanite from the Merelani Hills, Tanzania offers a classic, versatile presence in a roundish cut—perfect for designs that want a softer outline than a strict round, while still keeping a timeless look.

Friendly medium purplish-blue (same tone as the previous stone)

The gemstone shows the same attractive medium-saturated purplish-blue color as the previous tanzanite: recognizably Tanzanite, bright and lively, and easy to wear. It avoids the “too dark” look some stones can have, while still delivering enough saturation to feel rich and valuable.

Roundish cut — timeless and versatile

A roundish outline is extremely flexible for jewelry and works beautifully in:

  • solitaire rings

  • halo designs

  • pendants and classic everyday pieces

  • modern bezels that highlight the soft outline

A strong centerpiece at 4.05 ct

With 4.05 ct, this tanzanite has real presence and makes an excellent centerpiece stone—ideal for anyone looking for size, color, and wearability in one gem.

A lively Merelani Tanzanite with friendly medium purplish-blue color and a versatile roundish shape—ready for an elegant signature design.

Additional Information

Certification Options

Every gemstone purchased from Gem Fountain includes a free Gem Fountain Gemstone Report, provided as a PDF file, documenting the key characteristics and authenticity of the stone.

For customers who require independent laboratory verification, we offer the option to add third-party gemstone reports. Upon selection, the gemstone will be submitted to the chosen accredited gemological laboratory. Estimated fees and processing times are as follows:

  • BGL – Brief Report: USD 19
    Processing time: approximately 1–2 business days
  • AIG – Brief Report: USD 38
    Processing time: approximately 7–8 business days
  • LOTUS – Soft Cover Report: USD 128
    Processing time: approximately 7–8 business days

All external reports are optional and can be selected as an add-on prior to shipment. Processing times may vary slightly depending on laboratory workload.

Shipping & Payment

All gemstones are shipped directly from Thailand, one of the world’s leading gemstone trading hubs. We deliver to almost all countries worldwide, using reliable and insured shipping partners to ensure safe and secure delivery. Each order is carefully packaged, and tracking details are provided once the shipment has been dispatched. Delivery times may vary depending on destination and local customs procedures. Any applicable duties, taxes, or import fees are the responsibility of the recipient.

We offer flexible payment options to accommodate our international clientele. Most common payment methods are accepted at checkout. Customers who choose to pay via wire transfer (Wise) receive a 5% discount, which can be selected directly during the checkout process.

Specification

Overview
Total Carat4.05 ct / 1 pcs
Region / MineMerelani Hills
Country of OriginTanzania
Saturation / ToneMedium
ShadePurplish
ColorBlue
TransperencyTransparent
Stone TypeType I
ClarityLC
Dimensions 1 (L/W/H)9.80 x 9.60 x 6.40 mm
Traditional Heat

Standard heat treatment to improve color and/or clarity. Stable; no special care required.

Read more about common gemstone treatments →
Refractive Index nα = 1.685 - 1.696, nβ = 1.693 -1.702 and nγ = 1.700 -1.707
Birefringence 0.008 - 0.013
Hardness (Mohs) 6.5
Gravity 3.35 – 3.38
Crystal System Orthorhombic
Chemical Formular [Ca2Al3(SiO4)(Si2O7)O(OH)] + (Cr,Sr)